Definition from Wiktionary, the free dictionary
From Latin imperātīvus.
- It is imperative that you come here right now.
- (computing theory) Having a semantics that incorporates mutable variables.
- (grammar) of, or relating to the imperative mood
- (uncountable, grammar) The grammatical mood expressing an order (see jussive). In English, the imperative form of a verb is the same as that of the bare infinitive.
- The verbs in sentences like "Do it!" and "Say what you like!" are in the imperative.
- (countable, grammar) A verb in imperative mood.
- (countable) An essential action, a must: something which is imperative.
- Visiting Berlin is an imperative.
- (grammatical mood) imperative mood
Derived terms 
Coordinate terms 
imperative mood — see imperative mood
imperative f pl
- feminine plural of imperativo
Alternative forms 
imperātīvē (not comparable)
Related terms 
- imperative in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879